This paper examines the variation in the value of travel time savings (VTTS) for travelers with a managed lane (ML) option when taking an ordinary trip versus a trip that is unusual in some way. VTTS estimates vary substantially depending on the urgency of the trip made. At the low end, the mean...

This research examined travel behavior of Managed Lane (ML) users to better understand the value travelers place on travel time savings and travel time reliability. We also highlight the importance of survey design techniques. These objectives were accomplished through a stated preference survey...

This research examined the major changes in a corridor due to high occupancy/toll (HOT) lane implementation. This was accomplished by comparing the impacts of HOT lanes on three pairs of HOT lanes with similar design and operational characteristics. These pairwise comparisons of similar HOT...

This research investigated the change in carpooling on U.S. roadways once high occupancy/toll (HOT) lanes began on those roadways. HOT lanes generally allow carpools to travel on the lane for free while charging a toll for single occupant vehicles (SOVs) to use the lane. In most cases these...

Nevada ranks third in the world in gold production. In order to operate the massive open pit gold mines, the State of Nevada granted mining companies a temporary permit to pump groundwater from near the open pits and dispose of it. Certain instream flows have nearly doubled relative to average...

This study improves upon the standard "dummy variable" approach to modeling fish consumption advisories by jointly estimating a "perceived hazard" model and a site choice model. The perceived hazard model overcomes the shortcomings of the dummy variable model, namely that all anglers respond...

The effect of cigarette smoking on self-reported or assessed health (SAH) has been considered in several studies, with some surprising results, but smoking behavior has received less attention in studies in countries like China, than in the United States and various European countries. In this...

The safe minimum standard (SMS) is a decision rule to preserve renewable resources, unless the social costs of doing so are intolerable. While unpersuasive to many, support for the SMS has been advocated by some economists for settings involving irreversibility and a high degree of uncertainty....

Using a laboratory experiment, we investigate the validity of stated risks elicited via the Exchangeability Method (EM) by defining a valuation method based on de Finetti’s notion of coherence. The reliability of risk estimates elicited through the EM has been theoretically questioned because...